Combined garbage-burner and water-heater.



No. 778,954. PATENTED JAN. 3, 19 05.

' J. J. DUBE. I COMBINED GARBAGE BURNER AND WATER HEATER.

APPLICATION FILED JUNE 22. 1903.

viii-- f 1 IE 7 Patented January 3, 1905.

PATENT @rrrcp.

JOHN J. DUBE, or CHICAGO, ILLINOIS.

COMBINED GARBAGE-BURNER A ND WATER-HEATER.

SPECIFICATION forming part of Letters Patent No. 778,954, dated January3, 1905.

Application filed June 22, 1903. Serial No. 162.471.

To all whom, it may concern.-

Be it known that I, JOHN J. DUBI I, a citizen of the UnitedStates,residing at Chicago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in a CombinedGarbage-Burner and Water- Heater, of which the following is aspecification.

This invention relates to improvements in apparatus to be used forconsuming garbage and otherrefuse matter and at the same time forheating water; and it consists in certain peculiarities of theconstruction, novel arrangement, and operation of the various partsthereof, as will be hereinafter more fully se forth and specificallyclaimed.

The principal object of my invention is'to so construct the apparatus asto effect the thorough burning or the consumption of the garbage andrefuse matter and to utilize the heat generated thereby and from itsgases in heating a supply of water.

Another object is to provide a support or grate for the garbage, whichshall be composed of tubes or pipes arranged so that water may passthrough and circulate therein.

A further object is to so construct the apparatus as to prevent thesmoldering of the fire on the lower grate by reason of the drippingsfrom the garbage, which is supported about the middle portion of theburner or furnace.

Other objects and advantages of the invention will be disclosed in thesubjoined de-. scription and explanation.

In order to enable others skilled in the art to which my inventionpertains to make use of the same, I will now proceed to describe it,referring to the accompanying drawings, in which I Figure 1 is aperspective view of a combined garbage-burner and water-heater embodyingone form of my invention, showing the inner and outer cylinderscomprising the furnace and water-jacket therefor broken away to disclosethe construction and arrange ment of the support for the garbage. Fig. 2is a longitudinal section of the apparatus. Fig. 3 is a verticalsectional view through a portion of the burner or furnace and thegarbage-support. Fig. 4 is a plan view of the inner cylinder of thefurnace, showing a modification in the construction of thegarbage-support; and Fig. 5 is a fragmental view, partly in section andpartly in elevation, of the inner cylinder and the garbage-support,

' showing a modification in the latter.

Like numerals of reference refer to corresponding parts throughout thedifierent views of the drawings.

Thereference-numeral represents the inner casing, which is preferablycylindrical in form, as shown, but may be of other shape, and rests atits lower end on a base 11 of any suitable size, form, and material.Surrounding the inner casing 10 is an outer casing or water-jacket 12,which is held at a distance from the inner casing by means of flanges l3and 14, located between the casings at their top and bottom,respectively, thus forming a chamber or space 15, to which water issupplied through an inlet-opening 16, located in the lower portion ofthe water-jacket, and from whence the water may be discharged throughthe outlet-opening 17 .in the upper portion of said jacket or outercasing. Located on the upper surface of the flange 13 is a hood 18; withwhich communicates a pipe 19, leading to a flue for the escape of smokeand gases. This hood is provided with a doorway 20, through which thegarbage may be placed into the inner casing, so as-to rest on thegarbage grate or support. The lower portion of the inner casing isprovided with a horizontal grate 21 of any suitable form, and just abovesaid grate the inner and outer casings forming the furnace are providedwith a doorway 22, through which fuel may be passed to the said grate.At a suitable distance above the grate 21 the inner casing is providedwith a garbage grate or support which comprises a series of tubes 23,which have their outer ends expanded or otherwise suitably secured inopenings 24 in the inner casing. The tubes 23 are arranged radially, asshown in Figs. 1 to 33, inclusive, and have their inner ends upturnedand approximated.

Secured to the inner end of each of the tubes 23 by means of anelbow-coupling is an upright tube or pipe 26, which are secured to andcommunicate with a circular tube 27, lo-

cated horizontally on the tops of the upright tubes. Leading from thecircular tube 27 and I communicating with the water-space is a tube 28,which will permit of the free circulation of water through the tubescomprising the garbage grate or support, as is evident.

In Figs. 4 and 5 I have shown a modification in the construction of thegarbage grate or support, which consists of a series of tubes 29,located parallel with one another and each having its ends secured insuitable openings in the inner casing 10, so as to communicate with thespace 15 between the said casing and the outer one. These tubes are bentupwardly at their central portions, as shown in Fig. 5, and are unitedby means of pipes 30, one of which extends through the casing 10 andcommunicates with the water-space, as will be understood by reference toFig. 4 of the drawings, thus aifording means for the circulation ofWater through the tubes 29, comprising the modified form of the garbagegrate or support.

In order to permit of access to the horizontal portions of the tubesforming the garbage-grate, the outer cylinder or casing 12 may beprovided, as shown in Figs. 2 and 3 of the drawings, with a series ofopenings 31, located at points opposite the outer ends of the saidtubes. Located in each of the openings 31 is a hand-plate 32, each ofwhich is provided with ascrew-threaded bolt 33, which passes through ayoke 34, having its ends resting against the outer surface of thewater-jacket or outer casing. On the outer end of each of the bolts 33is a nut 35, used for securing the plates 32 in position.

Communicating with the cavity of the inner casing or cylinder below thegarbage grate or support is an auxiliary pipe or flue 36, which maycommunicate at its upper end with the smoke-pipe 19 and is employed forthe discharge of smoke and gasesfrom the fire on the grate 21and also toprevent the fire on said grate smoldering on account of the drippingsfrom the garbage, which rests on the garbage grate or support.

By constructing the garbage grate or support with its central portionupwardly projected it is apparent that the horizontal portions of thetubes will hold the garbage or refuse matter in such a manner as topermit of the passage of the flames, heat, and smoke from the lowergrate 21 through the central portion of the mass supported on thegarbage-grate.

As the garbage will contain more or less moisture or liquid, it isevident that the same will pass between the tubes comprising thegarbage-grate and fall on the fire of the lower grate and will have atendency to extinguish the same by reason of the smoke and steam causedthereby, which may be in sufficient quantities to prevent it passingreadily through the flue 19 and the draft-passage formed by the upwardprojections of the garbage-grate tubes. To facilitate the discharge ofthe smoke and gases from the lower portion of the furnace, I employ theauxiliary pipe 36, which may be provided with a damper 37 to regulatethe draft therethrough.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In a combined garbage-burner and waterheater, the combination with aninner casing, of an outer casing surrounding the same at a distancetherefrom to form a space for the circulation of water, a water-supplypipe and a V discharge pipe communicating with said space, agarbage-grate comprising a series of tubes horizontally and radiallyarranged and having their outer ends secured in openings in the innercasing and communicating with the water-space, vertical tubes connectedto and in communication with the inner ends of the horizontal tubes, acircular tube horizontally located and communicating with the upperportion of the vertical tubes, and a tube leading from the circular tubeto the waterspace, substantially as described.

2. In a combined garbage-burner and waterheater, the combination with aninner casing, of an outer casing surrounding the same at a distancetherefrom-to form a space for-the circulation of water, a water-supplypipe and a discharge-pipe communicating with said space, a garbage-gratecomprising a seriesof tubes horizontally and radially arranged andhaving their outer ends secured in openings in the inner casing andcommunicating with the water-space, vertical tubes connected to and incommunication with the inner ends of the horizontal tubes, a tubecommunicating with the upper portion of the vertical tubes and with thewater-space, a smoke-discharge pipe communicating with the upper portionof the inner casing and an auxiliary smokedischarge pipe communicatingwith the cavity of the inner casing below the garbagegrate,substantially as described.

JOHN J. DUBE.

\Vitnesses:

(bus. 0. TILLMAN, A. GUsTAFsoN.

